Limit guest count or Remove from search bar widget filter

Our property ParcBlu has units which can only host a maximum of 3 guests.

But both the Booking Engine and the Widget allows users to select more than 3 guests. When someone searches for more than 3 guests, they think that no units are available.

We wanted to know if it's possible to limit the max no. of guests or remove the option to select guests while making the search at the Booking Engine or Widget level.

Note: We still need them to select guests to make the booking, but that must be at the unit level of course.